Pronunciation: [skˈʌmz] (IPA) 
The correct spelling of the word "scums" is a bit tricky. It may seem natural to spell it as "scumz" since it refers to multiple scum. However, the correct spelling is with an "s" and no "z" at the end. This is because "scum" is a noun that belongs to the category of uncountable collective nouns. Therefore, it doesn't need a plural marker such as "z". The phonetic transcription of "scums" would be /skʌms/.
Scums refer to the plural form of the noun "scum." Scum is a term that can be used to describe several different contexts and has a range of meanings depending on the particular usage.
When referring to a substance, scum typically refers to a layer of dirt, impurities, or decaying matter that forms on the surface of a liquid. This can occur in various environments, such as stagnant water, ponds, or even on the top of certain foods when left out for an extended period.
In a figurative sense, scum can also be used to describe people or a group of individuals who are considered morally or socially reprehensible. It is often used to express strong disdain or contempt for someone's behavior, particularly if they are involved in dishonest, unethical, or criminal activities. In this context, scums implies a collective negative connotation associated with the individuals being referenced.
Additionally, scum can also be used as a verb, meaning to remove or clean the undesirable layer of impurities from the surface of a liquid or object. This action is typically carried out in order to restore cleanliness or to remove unwanted substances.
In summary, scums can be either a plural noun referring to an undesirable layer of impurities on the surface of a liquid, or it can be used as a derogatory term to describe morally corrupt or reprehensible individuals.
The term "scum" originated from the Middle English word "scume", which was derived from the Old Norse word "skūmi" meaning "foam". In its earliest usage, "scum" referred to the frothy substance that forms on the surface of boiling liquids, such as the foam that appears on top of soup or heated liquids. Over time, the term took on a metaphorical meaning, referring to the undesirable or worthless part of a population or group of individuals. This negative connotation has persisted in modern usage, where "scum" is often used to describe people considered morally repugnant or contemptible.
